<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@include file="common.jsp"%>
<html>
<head>
<title>
Dành cho người quản lí
</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<script language="JavaScript">
function checkinput(){
	if(document.form1.username.value==""){
		alert("Xin vui long nhap username");
		document.form1.username.focus();
		return false;
	}
	if(document.form1.password.value=="" ){
		alert("Xin vui long nhap password");
		document.form1.password.focus();
		return false;
	}
	return true;
}
</script>
<%
	String userid=getVal((String)session.getValue("userid"),"");
	if(!(userid.equals("")|| userid.equals("0") || userid.equals("-1")|| userid.equals("-2"))) response.sendRedirect("index.jsp");
	String err="Xin vui lòng nhập password";
	if(userid.equals("0")){err="<font color=\"#FF0000\">Sai password,Xin vui lòng nhập password</font>";}
	if(userid.equals("-1")){err="<font color=\"#FF0000\">Sai username,Xin vui lòng nhập username</font>";}
	if(userid.equals("-2")){err="<font color=\"#FF0000\">Loi he thong, Xin vui lòng thử lại</font>";}
%>
<form action=loginauthentication.jsp name=form1 method=post onSubmit="return checkinput();">
	<table align=center>
		<tr>
		<td colspan="2" height="19">
		<h4><b><font color="#FF0000">
		<font color="#0000CC">Nhân viên quản lí</font>
		</font></b></h4><hr>
		</td>
		</tr><tr>
		<td colspan=2 height="19">
		<div align="left"><%=err%></div>
		</td>
		</tr>
		<tr>
		<td height="19">
		<div align="left">Username</div>
		</td>
		<td height="19">
		<div align="left">
		<input type="text" name="username"
		size="30" maxlength="50" class=textbox>
		</div>
		</td>
		</tr>
		<tr>
		<td height="31">
		<div align="left">Password</div>
		</td>
		<td height="31">
		<div align="left">
		<input type="password" name="password"
		size="30" maxlength="50" class=textbox>
		</div>
		</td>
		</tr>
		<tr>
		<td >&nbsp;</td>
		<td>&nbsp;</td>
		</tr><tr>
		<td ></td>
		<td ><input type=submit value="Đăng nhập">
		&nbsp; <input type=reset value="Hủy"></td>
		</tr>
	</table>
</form>
</body>
</html>